Photosensitivity in cattle

By |2020-10-12T10:51:09+11:00February 11th, 2019|Categories: Farm Services, HerdWise|Tags: , , , , |

Dr Debbie Twiss Photosensitivity – what is it? Photosensitivity reactions in cattle occur when light reactive plant components (called phototoxins) enter the skin and are exposed to ultraviolet light. The phototoxin reacts to UV in light coloured or thin-skinned or hairless areas such as around the eyes, nose or teats. The wavelengths of UV that